firefly-linux-kernel-4.4.55.git
16 years agosparc: copy sparc64 specific files to asm-sparc
Sam Ravnborg [Thu, 19 Jun 2008 18:26:19 +0000 (20:26 +0200)]
sparc: copy sparc64 specific files to asm-sparc

Used the following script to copy the files:
cd include
set -e
SPARC64=`ls asm-sparc64`
for FILE in ${SPARC64}; do
if [ -f asm-sparc/$FILE ]; then
echo $FILE exist in asm-sparc
else
git mv asm-sparc64/$FILE asm-sparc/$FILE
printf "#include <asm-sparc/$FILE>\n" > asm-sparc64/$FILE
git add asm-sparc64/$FILE
fi
done

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/asi.h
Sam Ravnborg [Fri, 13 Jun 2008 19:49:07 +0000 (21:49 +0200)]
sparc: Merge asm-sparc{,64}/asi.h

Joined the two files as they contain distinct definitions.
Inspired by patch from: Adrian Bunk <bunk@kernel.org>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Adrian Bunk <bunk@kernel.org>
16 years agosparc: export openprom.h to userspace
Sam Ravnborg [Fri, 13 Jun 2008 18:20:54 +0000 (20:20 +0200)]
sparc: export openprom.h to userspace

sparc64 exports openprom.h to userspace so let sparc follow
the example.
As openprom.h pulled in another not-for-export vaddrs.h header
file it required a few changes to fix the build.

The definition af VMALLOC_* were moved to pgtable as this is
where sparc64 has them.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/types.h
Sam Ravnborg [Fri, 6 Jun 2008 19:35:43 +0000 (21:35 +0200)]
sparc: Merge asm-sparc{,64}/types.h

Copy content of sparc64 file to sparc file.
There is only minimal possibilities for further unification.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/termios.h
Sam Ravnborg [Fri, 6 Jun 2008 19:27:54 +0000 (21:27 +0200)]
sparc: Merge asm-sparc{,64}/termios.h

Bring the commit e55c57e0b51c68d78845549505057169c6c3cba6
("[SPARC64]: Report any user access faults in termios accessors")
over to sparc when unifying the two files.
The diff was manually inspected to contain no
other relevant changes.

This unification therefore changes functionality of sparc.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/termbits.h
Sam Ravnborg [Fri, 6 Jun 2008 19:13:45 +0000 (21:13 +0200)]
sparc: Merge asm-sparc{,64}/termbits.h

The type of tcflag_t differs from 32 and 64 bit.
For 32 bit it is long
For 64 bit it is int

Altough these have same size then I was not sure that
it was OK to change the 64 bit version to long as this
is part of the ABI so it was made conditional.

:$ diff -u include/asm-sparc/termbits.h include/asm-sparc64/termbits.h
:-- include/asm-sparc/termbits.h 2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/termbits.h 2008-06-13 06:42:07.000000000 +0200
:@@ -1,11 +1,11 @@
:-#ifndef _SPARC_TERMBITS_H
:-#define _SPARC_TERMBITS_H
:+#ifndef _SPARC64_TERMBITS_H
:+#define _SPARC64_TERMBITS_H
:
: #include <linux/posix_types.h>
:
: typedef unsigned char   cc_t;
: typedef unsigned int    speed_t;
:-typedef unsigned long   tcflag_t;
:+typedef unsigned int    tcflag_t;
:
: #define NCC 8
: struct termio {
:@@ -102,7 +102,7 @@
: #define IXANY 0x00000800
: #define IXOFF 0x00001000
: #define IMAXBEL 0x00002000
:-#define IUTF8   0x00004000
:+#define IUTF8 0x00004000
:
: /* c_oflag bits */
: #define OPOST 0x00000001
:@@ -171,7 +171,6 @@
: #define HUPCL   0x00000400
: #define CLOCAL   0x00000800
: #define CBAUDEX   0x00001000
:-/* We'll never see these speeds with the Zilogs, but for completeness... */
: #define  BOTHER   0x00001000
: #define  B57600   0x00001001
: #define  B115200  0x00001002
:@@ -199,7 +198,7 @@
: #define B3500000  0x00001012
: #define B4000000  0x00001013  */
: #define CIBAUD   0x100f0000  /* input baud rate (not used) */
:-#define CMSPAR   0x40000000  /* mark or space (stick) parity */
:+#define CMSPAR    0x40000000  /* mark or space (stick) parity */
: #define CRTSCTS   0x80000000  /* flow control */
:
: #define IBSHIFT   16 /* Shift from CBAUD to CIBAUD */
:@@ -258,4 +257,4 @@
: #define TCSADRAIN 1
: #define TCSAFLUSH 2
:
:-#endif /* !(_SPARC_TERMBITS_H) */
:+#endif /* !(_SPARC64_TERMBITS_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/setup.h
Sam Ravnborg [Fri, 6 Jun 2008 19:06:11 +0000 (21:06 +0200)]
sparc: Merge asm-sparc{,64}/setup.h

COMMAND_LINE_SIZE differ for 32 and 64 bit.
256 versus 2048

:$ diff -u include/asm-sparc/setup.h include/asm-sparc64/setup.h
:-- include/asm-sparc/setup.h 2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/setup.h 2008-06-13 06:42:07.000000000 +0200
:@@ -2,9 +2,9 @@
:  * Just a place holder.
:  */
:
:-#ifndef _SPARC_SETUP_H
:-#define _SPARC_SETUP_H
:+#ifndef _SPARC64_SETUP_H
:+#define _SPARC64_SETUP_H
:
:-#define COMMAND_LINE_SIZE 256
:+#define COMMAND_LINE_SIZE 2048
:
:-#endif /* _SPARC_SETUP_H */
:+#endif /* _SPARC64_SETUP_H */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/resource.h
Sam Ravnborg [Fri, 6 Jun 2008 19:02:38 +0000 (21:02 +0200)]
sparc: Merge asm-sparc{,64}/resource.h

RLIM_INFINITY differ from 32 and 64 bit.
The rest is equal.

:$ diff -u include/asm-sparc/resource.h include/asm-sparc64/resource.h
:-- include/asm-sparc/resource.h 2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/resource.h 2008-06-13 06:46:39.000000000 +0200
:@@ -1,11 +1,11 @@
: /*
:  * resource.h: Resource definitions.
:  *
:- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
:+ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
:  */
:
:-#ifndef _SPARC_RESOURCE_H
:-#define _SPARC_RESOURCE_H
:+#ifndef _SPARC64_RESOURCE_H
:+#define _SPARC64_RESOURCE_H
:
: /*
:  * These two resource limit IDs have a Sparc/Linux-specific ordering,
:@@ -14,13 +14,6 @@
: #define RLIMIT_NOFILE 6 /* max number of open files */
: #define RLIMIT_NPROC 7 /* max number of processes */
:
:-/*
:- * SuS says limits have to be unsigned.
:- * We make this unsigned, but keep the
:- * old value for compatibility:
:- */
:-#define RLIM_INFINITY 0x7fffffff
:-
: #include <asm-generic/resource.h>
:
:-#endif /* !(_SPARC_RESOURCE_H) */
:+#endif /* !(_SPARC64_RESOURCE_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/fbio.h
Sam Ravnborg [Thu, 5 Jun 2008 19:57:01 +0000 (21:57 +0200)]
sparc: Merge asm-sparc{,64}/fbio.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: copy asm-sparc64/fbio.h to asm-sparc
Sam Ravnborg [Thu, 5 Jun 2008 19:54:03 +0000 (21:54 +0200)]
sparc: copy asm-sparc64/fbio.h to asm-sparc

There were only a few trivial changes and a few additions
in the sparc64 variant of this file.
This patch copies the sparc64 specific bits to the sparc version
of fbio.h so they are equal. A later patch will merge the two.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/mman.h
Sam Ravnborg [Fri, 6 Jun 2008 18:51:20 +0000 (20:51 +0200)]
sparc: Merge asm-sparc{,64}/mman.h

Renaming the function sparc64_mmap_check() to
sparc_mmap_check() was enough to make the two
header files identical.

:$ diff -u include/asm-sparc/mman.h include/asm-sparc64/mman.h
:-- include/asm-sparc/mman.h 2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/mman.h 2008-06-13 06:46:39.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef __SPARC_MMAN_H__
:-#define __SPARC_MMAN_H__
:+#ifndef __SPARC64_MMAN_H__
:+#define __SPARC64_MMAN_H__
:
: #include <asm-generic/mman.h>
:
:@@ -23,9 +23,9 @@
:
: #ifdef __KERNEL__
: #ifndef __ASSEMBLY__
:-#define arch_mmap_check(addr,len,flags) sparc_mmap_check(addr,len)
:-int sparc_mmap_check(unsigned long addr, unsigned long len);
:+#define arch_mmap_check(addr,len,flags) sparc64_mmap_check(addr,len)
:+int sparc64_mmap_check(unsigned long addr, unsigned long len);
: #endif
: #endif
:
:-#endif /* __SPARC_MMAN_H__ */
:+#endif /* __SPARC64_MMAN_H__ */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/shmbuf.h
Sam Ravnborg [Thu, 5 Jun 2008 21:46:22 +0000 (23:46 +0200)]
sparc: Merge asm-sparc{,64}/shmbuf.h

Padding in the shmbuf structure made conditional
as only 32 bit sparc did so.

:$ diff -u include/asm-sparc/shmbuf.h include/asm-sparc64/shmbuf.h
:-- include/asm-sparc/shmbuf.h 2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/shmbuf.h 2008-06-13 06:42:07.000000000 +0200
:@@ -1,23 +1,19 @@
:-#ifndef _SPARC_SHMBUF_H
:-#define _SPARC_SHMBUF_H
:+#ifndef _SPARC64_SHMBUF_H
:+#define _SPARC64_SHMBUF_H
:
: /*
:- * The shmid64_ds structure for sparc architecture.
:+ * The shmid64_ds structure for sparc64 architecture.
:  * Note extra padding because this structure is passed back and forth
:  * between kernel and user space.
:  *
:  * Pad space is left for:
:- * - 64-bit time_t to solve y2038 problem
:- * - 2 miscellaneous 32-bit values
:+ * - 2 miscellaneous 64-bit values
:  */
:
: struct shmid64_ds {
:  struct ipc64_perm shm_perm; /* operation perms */
:- unsigned int __pad1;
:  __kernel_time_t shm_atime; /* last attach time */
:- unsigned int __pad2;
:  __kernel_time_t shm_dtime; /* last detach time */
:- unsigned int __pad3;
:  __kernel_time_t shm_ctime; /* last change time */
:  size_t shm_segsz; /* size of segment (bytes) */
:  __kernel_pid_t shm_cpid; /* pid of creator */
:@@ -39,4 +35,4 @@
:  unsigned long __unused4;
: };
:
:-#endif /* _SPARC_SHMBUF_H */
:+#endif /* _SPARC64_SHMBUF_H */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/sembuf.h
Sam Ravnborg [Thu, 5 Jun 2008 21:39:32 +0000 (23:39 +0200)]
sparc: Merge asm-sparc{,64}/sembuf.h

Padding in the sembuf structure made conditional
as only 32 bit sparc did so.

:$ diff -u include/asm-sparc/sembuf.h include/asm-sparc64/sembuf.h
:-- include/asm-sparc/sembuf.h 2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/sembuf.h 2008-06-13 06:42:07.000000000 +0200
:@@ -1,21 +1,18 @@
:-#ifndef _SPARC_SEMBUF_H
:-#define _SPARC_SEMBUF_H
:+#ifndef _SPARC64_SEMBUF_H
:+#define _SPARC64_SEMBUF_H
:
: /*
:- * The semid64_ds structure for sparc architecture.
:+ * The semid64_ds structure for sparc64 architecture.
:  * Note extra padding because this structure is passed back and forth
:  * between kernel and user space.
:  *
:  * Pad space is left for:
:- * - 64-bit time_t to solve y2038 problem
:- * - 2 miscellaneous 32-bit values
:+ * - 2 miscellaneous 64-bit values
:  */
:
: struct semid64_ds {
:  struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
:- unsigned int __pad1;
:  __kernel_time_t sem_otime; /* last semop time */
:- unsigned int __pad2;
:  __kernel_time_t sem_ctime; /* last change time */
:  unsigned long sem_nsems; /* no. of semaphores in array */
:  unsigned long __unused1;

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/msgbuf.h
Sam Ravnborg [Thu, 5 Jun 2008 21:04:06 +0000 (23:04 +0200)]
sparc: Merge asm-sparc{,64}/msgbuf.h

Padding from 32 bit sparc kept using preprocessor magic

:$ diff -u include/asm-sparc/msgbuf.h include/asm-sparc64/msgbuf.h
:-- include/asm-sparc/msgbuf.h 2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/msgbuf.h 2008-06-13 06:42:07.000000000 +0200
:@@ -7,17 +7,13 @@
:  * between kernel and user space.
:  *
:  * Pad space is left for:
:- * - 64-bit time_t to solve y2038 problem
:- * - 2 miscellaneous 32-bit values
:+ * - 2 miscellaneous 64-bit values
:  */
:
: struct msqid64_ds {
:  struct ipc64_perm msg_perm;
:- unsigned int   __pad1;
:  __kernel_time_t msg_stime; /* last msgsnd time */
:- unsigned int   __pad2;
:  __kernel_time_t msg_rtime; /* last msgrcv time */
:- unsigned int   __pad3;
:  __kernel_time_t msg_ctime; /* last change time */
:  unsigned long  msg_cbytes; /* current number of bytes on queue */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/fcntl.h
Sam Ravnborg [Thu, 5 Jun 2008 20:37:04 +0000 (22:37 +0200)]
sparc: Merge asm-sparc{,64}/fcntl.h

The definition of O_NDELAY differed - the rest was equal

:$ diff -u include/asm-sparc/fcntl.h include/asm-sparc64/fcntl.h
:-- include/asm-sparc/fcntl.h 2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/fcntl.h 2008-06-13 06:46:39.000000000 +0200
:@@ -1,8 +1,9 @@
:-#ifndef _SPARC_FCNTL_H
:-#define _SPARC_FCNTL_H
:+#ifndef _SPARC64_FCNTL_H
:+#define _SPARC64_FCNTL_H
:
: /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
:    located on an ext2 file system */
:+#define O_NDELAY 0x0004
: #define O_APPEND 0x0008
: #define FASYNC 0x0040 /* fcntl, for BSD compatibility */
: #define O_CREAT 0x0200 /* not fcntl */
:@@ -10,7 +11,6 @@
: #define O_EXCL 0x0800 /* not fcntl */
: #define O_SYNC 0x2000
: #define O_NONBLOCK 0x4000
:-#define O_NDELAY (0x0004 | O_NONBLOCK)
: #define O_NOCTTY 0x8000 /* not fcntl */
: #define O_LARGEFILE 0x40000
: #define O_DIRECT        0x100000 /* direct disk access hint */
:@@ -29,8 +29,7 @@
: #define F_UNLCK 3
:
: #define __ARCH_FLOCK_PAD short __unused;
:-#define __ARCH_FLOCK64_PAD short __unused;
:
: #include <asm-generic/fcntl.h>
:
:-#endif
:+#endif /* !(_SPARC64_FCNTL_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/sockios.h
Sam Ravnborg [Thu, 5 Jun 2008 21:50:10 +0000 (23:50 +0200)]
sparc: Merge asm-sparc{,64}/sockios.h

:$ diff -u include/asm-sparc/sockios.h include/asm-sparc64/sockios.h
:-- include/asm-sparc/sockios.h 2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/sockios.h 2008-06-13 06:42:07.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef _ASM_SPARC_SOCKIOS_H
:-#define _ASM_SPARC_SOCKIOS_H
:+#ifndef _ASM_SPARC64_SOCKIOS_H
:+#define _ASM_SPARC64_SOCKIOS_H
:
: /* Socket-level I/O control calls. */
: #define FIOSETOWN  0x8901
:@@ -10,5 +10,5 @@
: #define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
: #define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
:
:-#endif /* !(_ASM_SPARC_SOCKIOS_H) */
:+#endif /* !(_ASM_SPARC64_SOCKIOS_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/socket.h
Sam Ravnborg [Thu, 5 Jun 2008 21:49:02 +0000 (23:49 +0200)]
sparc: Merge asm-sparc{,64}/socket.h

:$ diff -u include/asm-sparc/socket.h include/asm-sparc64/socket.h
:-- include/asm-sparc/socket.h 2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/socket.h 2008-06-13 06:46:39.000000000 +0200
:@@ -48,11 +48,10 @@
: #define SO_TIMESTAMPNS 0x0021
: #define SCM_TIMESTAMPNS SO_TIMESTAMPNS
:
:-#define SO_MARK 0x0022
:-
: /* Security levels - as per NRL IPv6 - don't actually do anything */
: #define SO_SECURITY_AUTHENTICATION 0x5001
: #define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002
: #define SO_SECURITY_ENCRYPTION_NETWORK 0x5004
:
:+#define SO_MARK 0x0022
: #endif /* _ASM_SOCKET_H */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/poll.h
Sam Ravnborg [Thu, 5 Jun 2008 21:08:51 +0000 (23:08 +0200)]
sparc: Merge asm-sparc{,64}/poll.h

:$ diff -u include/asm-sparc/poll.h include/asm-sparc64/poll.h
:-- include/asm-sparc/poll.h 2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/poll.h 2008-06-13 06:42:07.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef __SPARC_POLL_H
:-#define __SPARC_POLL_H
:+#ifndef __SPARC64_POLL_H
:+#define __SPARC64_POLL_H
:
: #define POLLWRNORM POLLOUT
: #define POLLWRBAND 256

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/param.h
Sam Ravnborg [Thu, 5 Jun 2008 21:07:26 +0000 (23:07 +0200)]
sparc: Merge asm-sparc{,64}/param.h

:$ diff -u include/asm-sparc/param.h include/asm-sparc64/param.h
:-- include/asm-sparc/param.h 2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/param.h 2008-06-13 06:42:07.000000000 +0200
:@@ -1,5 +1,6 @@
:-#ifndef _ASMSPARC_PARAM_H
:-#define _ASMSPARC_PARAM_H
:+#ifndef _ASMSPARC64_PARAM_H
:+#define _ASMSPARC64_PARAM_H
:+
:
: #ifdef __KERNEL__
: # define HZ CONFIG_HZ /* Internal kernel timer frequency */
:@@ -19,4 +20,4 @@
:
: #define MAXHOSTNAMELEN 64 /* max length of hostname */
:
:-#endif
:+#endif /* _ASMSPARC64_PARAM_H */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/ioctls.h
Sam Ravnborg [Thu, 5 Jun 2008 20:45:50 +0000 (22:45 +0200)]
sparc: Merge asm-sparc{,64}/ioctls.h

Trivial differenses in comments - used the version from sparc64

:$ diff -u include/asm-sparc/ioctls.h include/asm-sparc64/ioctls.h
:-- include/asm-sparc/ioctls.h 2008-06-13 08:46:29.000000000 +0200
:++ include/asm-sparc64/ioctls.h 2008-06-13 08:46:29.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef _ASM_SPARC_IOCTLS_H
:-#define _ASM_SPARC_IOCTLS_H
:+#ifndef _ASM_SPARC64_IOCTLS_H
:+#define _ASM_SPARC64_IOCTLS_H
:
: #include <asm/ioctl.h>
:
:@@ -22,7 +22,7 @@
:
: /* Note that all the ioctls that are not available in Linux have a
:  * double underscore on the front to: a) avoid some programs to
:- * thing we support some ioctls under Linux (autoconfiguration stuff)
:+ * think we support some ioctls under Linux (autoconfiguration stuff)
:  */
: /* Little t */
: #define TIOCGETD _IOR('t', 0, int)
:@@ -110,7 +110,7 @@
: #define TIOCSERGETLSR   0x5459 /* Get line status register */
: #define TIOCSERGETMULTI 0x545A /* Get multiport config  */
: #define TIOCSERSETMULTI 0x545B /* Set multiport config */
:-#define TIOCMIWAIT 0x545C /* Wait input */
:+#define TIOCMIWAIT 0x545C /* Wait for change on serial input line(s) */
: #define TIOCGICOUNT 0x545D /* Read serial port inline interrupt counts */
:
: /* Kernel definitions */
:@@ -133,4 +133,4 @@
: #define TIOCPKT_NOSTOP 16
: #define TIOCPKT_DOSTOP 32
:
:-#endif /* !(_ASM_SPARC_IOCTLS_H) */
:+#endif /* !(_ASM_SPARC64_IOCTLS_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: Merge asm-sparc{,64}/ioctl.h
Sam Ravnborg [Thu, 5 Jun 2008 20:44:29 +0000 (22:44 +0200)]
sparc: Merge asm-sparc{,64}/ioctl.h

:$ diff -u include/asm-sparc/ioctl.h include/asm-sparc64/ioctl.h
:-- include/asm-sparc/ioctl.h 2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/ioctl.h 2008-06-13 08:46:29.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef _SPARC_IOCTL_H
:-#define _SPARC_IOCTL_H
:+#ifndef _SPARC64_IOCTL_H
:+#define _SPARC64_IOCTL_H
:
:/*
:* Our DIR and SIZE overlap in order to simulteneously provide
:@@ -64,4 +64,4 @@
:#define IOCSIZE_MASK    (_IOC_XSIZEMASK << _IOC_SIZESHIFT)
:#define IOCSIZE_SHIFT   (_IOC_SIZESHIFT)
:
:-#endif /* !(_SPARC_IOCTL_H) */
:+#endif /* !(_SPARC64_IOCTL_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: copy exported sparc64 specific header files to asm-sparc
Sam Ravnborg [Fri, 13 Jun 2008 06:26:32 +0000 (08:26 +0200)]
sparc: copy exported sparc64 specific header files to asm-sparc

Copy was done using the following simple script:

set -e
SPARC64="h display7seg.h envctrl.h psrcompat.h pstate.h uctx.h utrap.h watchdog.h"
for FILE in ${SPARC64}; do
if [ -f asm-sparc/$FILE ]; then
echo $FILE exist in asm-sparc
fi
cat asm-sparc64/$FILE > asm-sparc/$FILE
printf "#include <asm-sparc/$FILE>\n" > asm-sparc64/$FILE
done

The name of the copied files are added to asm-sparc/Kbuild
to keep "make headers_check" functional.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc: add -m64 when building vmlinux.lds
Sam Ravnborg [Mon, 7 Jul 2008 20:30:35 +0000 (22:30 +0200)]
sparc: add -m64 when building vmlinux.lds

David Miller noticed that the build of vmlinux.lds
failed to use the -m64 specifier.
This caused the build to break with a bi-arch gcc with
unified headers.

Add the -m64 option to CPPFLAGS_vmlinux.lds so we
have the correct defines available when building
vmliux.lds.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
16 years agosparc64 Kbuild: apb.h and bbc.h should not be exported to userspace
David S. Miller [Tue, 10 Jun 2008 20:00:12 +0000 (13:00 -0700)]
sparc64 Kbuild: apb.h and bbc.h should not be exported to userspace

Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agosparc: Merge include/asm-sparc{,64}/perfctr.h
Sam Ravnborg [Thu, 5 Jun 2008 18:48:20 +0000 (11:48 -0700)]
sparc: Merge include/asm-sparc{,64}/perfctr.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agosparc: Merge include/asm-sparc{,64}/openpromio.h
Sam Ravnborg [Thu, 5 Jun 2008 18:47:46 +0000 (11:47 -0700)]
sparc: Merge include/asm-sparc{,64}/openpromio.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agosparc: remove PROM_AP1000
Adrian Bunk [Thu, 5 Jun 2008 18:45:42 +0000 (11:45 -0700)]
sparc: remove PROM_AP1000

This seems to be left from the long gone AP1000 support.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agodrivers/sbus/: cleanups
Adrian Bunk [Thu, 5 Jun 2008 18:44:39 +0000 (11:44 -0700)]
drivers/sbus/: cleanups

This patch contains the following cleanups:
- make the following needlessly global code static:
  - char/uctrl.c: uctrl_get_event_status()
  - char/uctrl.c: uctrl_get_external_status()
  - char/vfc_dev.c: struct vfc_dev_lst
  - char/vfc_dev.c: vfc_lock_device()
  - char/vfc_dev.c: vfc_unlock_device()
  - char/vfc_dev.c: vfc_captstat_reset()
  - char/vfc_dev.c: vfc_memptr_reset()
  - char/vfc_dev.c: vfc_csr_init()
  - char/vfc_dev.c: vfc_saa9051_init()
  - char/vfc_dev.c: init_vfc_hw()
  - char/vfc_dev.c: init_vfc_devstruct()
  - char/vfc_dev.c: init_vfc_device()
  - char/vfc_dev.c: vfc_get_dev_ptr()
  - char/vfc_dev.c: vfc_capture_start()
  - char/vfc_dev.c: vfc_capture_poll()
  - char/vfc_dev.c: vfc_port_change_ioctl()
  - char/vfc_dev.c: vfc_set_video_ioctl()
  - char/vfc_dev.c: vfc_get_video_ioctl()
  - char/vfc_i2c.c: vfc_i2c_wait_for_bus()
  - char/vfc_i2c.c: vfc_i2c_wait_for_pin()
  - char/vfc_i2c.c: vfc_i2c_xmit_addr()
  - char/vfc_i2c.c: vfc_i2c_xmit_byte()
  - char/vfc_i2c.c: vfc_i2c_recv_byte()
  - dvma.c: init_one_dvma()
- remove an unused variable from a function:
  - char/uctrl.c: ts102_uctrl_init()
- remove the following unused and empty function:
  - char/uctrl.c: uctrl_set_video()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agosparc64/kernel/: make code static
Adrian Bunk [Thu, 5 Jun 2008 18:42:40 +0000 (11:42 -0700)]
sparc64/kernel/: make code static

This patch makes the following needlessly global code static:
- central.c: struct central_bus
- central.c: struct fhc_list
- central.c: apply_fhc_ranges()
- central.c: apply_central_ranges()
- ds.c: struct ds_states_template[]
- pci_msi.c: sparc64_setup_msi_irq()
- pci_msi.c: sparc64_teardown_msi_irq()
- pci_sun4v.c: struct sun4v_dma_ops
- sys_sparc32.c: cp_compat_stat64()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agosparc/mm/: possible cleanups
Adrian Bunk [Thu, 5 Jun 2008 18:41:51 +0000 (11:41 -0700)]
sparc/mm/: possible cleanups

This patch contains the following possible cleanups:
- make the following needlessly global code static:
  - fault.c: force_user_fault()
  - init.c: calc_max_low_pfn()
  - init.c: pgt_cache_water[]
  - init.c: map_high_region()
  - srmmu.c: hwbug_bitmask
  - srmmu.c: srmmu_swapper_pg_dir
  - srmmu.c: srmmu_context_table
  - srmmu.c: is_hypersparc
  - srmmu.c: srmmu_cache_pagetables
  - srmmu.c: srmmu_nocache_size
  - srmmu.c: srmmu_nocache_end
  - srmmu.c: srmmu_get_nocache()
  - srmmu.c: srmmu_free_nocache()
  - srmmu.c: srmmu_early_allocate_ptable_skeleton()
  - srmmu.c: srmmu_nocache_calcsize()
  - srmmu.c: srmmu_nocache_init()
  - srmmu.c: srmmu_alloc_thread_info()
  - srmmu.c: early_pgtable_allocfail()
  - srmmu.c: srmmu_early_allocate_ptable_skeleton()
  - srmmu.c: srmmu_allocate_ptable_skeleton()
  - srmmu.c: srmmu_inherit_prom_mappings()
  - sunami.S: tsunami_copy_1page
- remove the following unused code:
  - init.c: struct sparc_aliases

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agosparc/kernel/: possible cleanups
Adrian Bunk [Thu, 5 Jun 2008 18:40:58 +0000 (11:40 -0700)]
sparc/kernel/: possible cleanups

This patch contains the following possible cleanups:
- make the following needlessly global code static:
  - apc.c: apc_swift_idle()
  - ebus.c: ebus_blacklist_irq()
  - ebus.c: fill_ebus_child()
  - ebus.c: fill_ebus_device()
  - entry.S: syscall_is_too_hard
  - etra: tsetup_sun4c_stackchk
  - head.S: cputyp
  - head.S: prom_vector_p
  - idprom.c: Sun_Machines[]
  - ioport.c: _sparc_find_resource()
  - ioport.c: create_proc_read_entry()
  - irq.c: struct sparc_irq[]
  - rtrap.S: sun4c_rett_stackchk
  - setup.c: prom_sync_me()
  - setup.c: boot_flags
  - sun4c_irq.c: sun4c_sbint_to_irq()
  - sun4d_irq.c: sbus_tid[]
  - sun4d_irq.c: struct sbus_actions
  - sun4d_irq.c: sun4d_sbint_to_irq()
  - sun4m_irq.c: sun4m_sbint_to_irq()
  - sun4m_irq.c: sun4m_get_irqmask()
  - sun4m_irq.c: sun4m_timers
  - sun4m_smp.c: smp4m_cross_call()
  - sun4m_smp.c: smp4m_blackbox_id()
  - sun4m_smp.c: smp4m_blackbox_current()
  - time.c: sp_clock_typ
  - time.c: sbus_time_init()
  - traps.c: instruction_dump()
  - wof.S: spwin_sun4c_stackchk
  - wuf.S: sun4c_fwin_stackchk
- #if 0 the following unused code:
  - process.c: sparc_backtrace_lock
  - process.c: __show_backtrace()
  - process.c: show_backtrace()
  - process.c: smp_show_backtrace_all_cpus()
- remove the following unused code:
  - entry.S: __handle_exception
  - smp.c: smp_num_cpus
  - smp.c: smp_activated
  - smp.c: __cpu_number_map[]
  - smp.c: __cpu_logical_map[]
  - smp.c: bitops_spinlock
  - traps.c: trap_curbuf
  - traps.c: trapbuf[]
  - traps.c: linux_smp_still_initting
  - traps.c: thiscpus_tbr
  - traps.c: thiscpus_mid

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfashe...
Linus Torvalds [Thu, 17 Jul 2008 17:55:51 +0000 (10:55 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/mfasheh/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
  [PATCH] ocfs2: fix oops in mmap_truncate testing
  configfs: call drop_link() to cleanup after create_link() failure
  configfs: Allow ->make_item() and ->make_group() to return detailed errors.
  configfs: Fix failing mkdir() making racing rmdir() fail
  configfs: Fix deadlock with racing rmdir() and rename()
  configfs: Make configfs_new_dirent() return error code instead of NULL
  configfs: Protect configfs_dirent s_links list mutations
  configfs: Introduce configfs_dirent_lock
  ocfs2: Don't snprintf() without a format.
  ocfs2: Fix CONFIG_OCFS2_DEBUG_FS #ifdefs
  ocfs2/net: Silence build warnings on sparc64
  ocfs2: Handle error during journal load
  ocfs2: Silence an error message in ocfs2_file_aio_read()
  ocfs2: use simple_read_from_buffer()
  ocfs2: fix printk format warnings with OCFS2_FS_STATS=n
  [PATCH 2/2] ocfs2: Instrument fs cluster locks
  [PATCH 1/2] ocfs2: Add CONFIG_OCFS2_FS_STATS config option

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-fixes-2.6
Linus Torvalds [Thu, 17 Jul 2008 17:55:07 +0000 (10:55 -0700)]
Merge git://git./linux/kernel/git/brodo/pcmcia-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-fixes-2.6:
  pcmcia: ide-cs: Remove outdated comment
  pcmcia: fix cisinfo_t removal
  pcmcia: fix return value in cm4000_cs.c

16 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 17 Jul 2008 17:38:59 +0000 (10:38 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: fix asm/e820.h for userspace inclusion
  x86: fix numaq_tsc_disable
  x86: fix kernel_physical_mapping_init() for large x86 systems

16 years agoMerge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 17 Jul 2008 17:37:10 +0000 (10:37 -0700)]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ftrace: do not trace library functions
  ftrace: do not trace scheduler functions
  ftrace: fix lockup with MAXSMP
  ftrace: fix merge buglet

16 years agox86: fix asm/e820.h for userspace inclusion
Rusty Russell [Tue, 15 Jul 2008 05:02:27 +0000 (15:02 +1000)]
x86: fix asm/e820.h for userspace inclusion

asm-x86/e820.h is included from userspace.  'x86: make e820.c to have
common functions' (b79cd8f1268bab57ff85b19d131f7f23deab2dee) broke it:

make -C Documentation/lguest
cc -Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include
lguest.c  -lz -o lguest
In file included from ../../include/asm-x86/bootparam.h:8,
                 from lguest.c:45:
../../include/asm/e820.h:66: error: expected â€˜)’ before â€˜start’
../../include/asm/e820.h:67: error: expected â€˜)’ before â€˜start’
../../include/asm/e820.h:68: error: expected â€˜)’ before â€˜start’
../../include/asm/e820.h:72: error: expected â€˜=’, â€˜,’, â€˜;’, â€˜asm’
or â€˜__attribute__’ before â€˜e820_update_range’
...

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agox86: fix numaq_tsc_disable
Yinghai Lu [Tue, 15 Jul 2008 06:29:01 +0000 (23:29 -0700)]
x86: fix numaq_tsc_disable

fix:

 arch/x86/kernel/numaq_32.c: In function â€˜numaq_tsc_disable’:
 arch/x86/kernel/numaq_32.c:99: warning: â€˜return’ with a value, in function returning void

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoMerge branch 'linus' into x86/urgent
Ingo Molnar [Thu, 17 Jul 2008 17:24:56 +0000 (19:24 +0200)]
Merge branch 'linus' into x86/urgent

16 years agofix build error of arch/ia64/kvm/*
Takashi Iwai [Thu, 17 Jul 2008 16:09:12 +0000 (18:09 +0200)]
fix build error of arch/ia64/kvm/*

Fix calls of smp_call_function*() in arch/ia64/kvm for recent API
changes.

    CC [M]  arch/ia64/kvm/kvm-ia64.o
  arch/ia64/kvm/kvm-ia64.c: In function 'handle_global_purge':
  arch/ia64/kvm/kvm-ia64.c:398: error: too many arguments to function 'smp_call_function_single'
  arch/ia64/kvm/kvm-ia64.c: In function 'kvm_vcpu_kick':
  arch/ia64/kvm/kvm-ia64.c:1696: error: too many arguments to function 'smp_call_function_single'

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'ptrace-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/frob...
Linus Torvalds [Thu, 17 Jul 2008 16:15:23 +0000 (09:15 -0700)]
Merge branch 'ptrace-cleanup' of git://git./linux/kernel/git/frob/linux-2.6-utrace

* 'ptrace-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-utrace:
  fix dangling zombie when new parent ignores children
  do_wait: return security_task_wait() error code in place of -ECHILD
  ptrace children revamp
  do_wait reorganization

16 years agoUpdate scripts/Makefile.fwinst to cope with older make
David Woodhouse [Thu, 17 Jul 2008 06:44:32 +0000 (23:44 -0700)]
Update scripts/Makefile.fwinst to cope with older make

Also fix unwanted rebuilds of the firmware/ihex2fw tool by including
the .ihex2fw.cmd file when present.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Reported-and-tested-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Thu, 17 Jul 2008 16:05:38 +0000 (09:05 -0700)]
Merge branch 'for-linus' of git://git390.osdl.marist.edu/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] dasd: use -EOPNOTSUPP instead of -ENOTSUPP
  [S390] qdio: new qdio driver.
  [S390] cio: Export chsc_error_from_response().
  [S390] vmur: Fix return code handling.
  [S390] Fix stacktrace compile bug.
  [S390] Increase default warning stacksize.
  [S390] dasd: Fix cleanup in dasd_{fba,diag}_check_characteristics().
  [S390] chsc headers userspace cleanup
  [S390] dasd: fix unsolicited SIM handling.
  [S390] zfcpdump: Make SCSI disk dump tool recognize storage holes

16 years agoFix collateral damage to top level Makefile
Grant Likely [Thu, 17 Jul 2008 07:06:55 +0000 (01:06 -0600)]
Fix collateral damage to top level Makefile

The patch named "powerpc/mpc5121: Add clock driver", also contained
an unrelated and bogus change to the top-level makefile.  This patch
backs out the bad bit.

SHA1 of offending patch: 137e95906e294913fab02162e8a1948ade49acb5)

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Repented-by: John Rigby <jrigby@freescale.com>
[ Heh. Normally I pick these out from the diffstats, but I guess
  I've grown to trust the ppc tree too much ;)   - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoftrace: do not trace library functions
Ingo Molnar [Thu, 17 Jul 2008 15:40:48 +0000 (17:40 +0200)]
ftrace: do not trace library functions

make function tracing more robust: do not trace library functions.

We've already got a sizable list of exceptions:

 ifdef CONFIG_FTRACE
 # Do not profile string.o, since it may be used in early boot or vdso
 CFLAGS_REMOVE_string.o = -pg
 # Also do not profile any debug utilities
 CFLAGS_REMOVE_spinlock_debug.o = -pg
 CFLAGS_REMOVE_list_debug.o = -pg
 CFLAGS_REMOVE_debugobjects.o = -pg
 CFLAGS_REMOVE_find_next_bit.o = -pg
 CFLAGS_REMOVE_cpumask.o = -pg
 CFLAGS_REMOVE_bitmap.o = -pg
 endif

... and the pattern has been that random library functionality showed
up in ftrace's critical path (outside of its recursion check), causing
hard to debug lockups.

So be a bit defensive about it and exclude all lib/*.o functions by
default. It's not that they are overly interesting for tracing purposes
anyway. Specific ones can still be traced, in an opt-in manner.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoftrace: do not trace scheduler functions
Ingo Molnar [Tue, 15 Apr 2008 20:39:31 +0000 (22:39 +0200)]
ftrace: do not trace scheduler functions

do not trace scheduler functions - it's still a bit fragile
and can lock up with:

  http://redhat.com/~mingo/misc/config-Thu_Jul_17_13_34_52_CEST_2008

Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agoftrace: fix lockup with MAXSMP
Ingo Molnar [Thu, 17 Jul 2008 15:38:17 +0000 (17:38 +0200)]
ftrace: fix lockup with MAXSMP

MAXSMP brings in lots of use of various bitops in smp_processor_id()
and friends - causing ftrace to lock up during bootup:

  calling  anon_inode_init+0x0/0x130
  initcall anon_inode_init+0x0/0x130 returned 0 after 0 msecs
  calling  acpi_event_init+0x0/0x57
  [ hard hang ]

So exclude the bitops facilities from tracing.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years ago[S390] dasd: use -EOPNOTSUPP instead of -ENOTSUPP
Stefan Haberland [Thu, 17 Jul 2008 15:16:49 +0000 (17:16 +0200)]
[S390] dasd: use -EOPNOTSUPP instead of -ENOTSUPP

return value -ENOTSUPP is not valid in userspace context, use
-EOPNOTSUPP instead

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
16 years ago[S390] qdio: new qdio driver.
Jan Glauber [Thu, 17 Jul 2008 15:16:48 +0000 (17:16 +0200)]
[S390] qdio: new qdio driver.

List of major changes:
- split qdio driver into several files
- seperation of thin interrupt code
- improved handling for multiple thin interrupt devices
- inbound and outbound processing now always runs in tasklet context
- significant less tasklet schedules per interrupt needed
- merged qebsm with non-qebsm handling
- cleanup qdio interface and added kerneldoc
- coding style

Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Utz Bacher <utz.bacher@de.ibm.com>
Reviewed-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
16 years ago[S390] cio: Export chsc_error_from_response().
Cornelia Huck [Thu, 17 Jul 2008 15:16:47 +0000 (17:16 +0200)]
[S390] cio: Export chsc_error_from_response().

Make chsc_error_from_response() available to chsc callers outside
of chsc.c (namely qdio) to avoid duplicating error checking code.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
16 years ago[S390] vmur: Fix return code handling.
Frank Munzert [Thu, 17 Jul 2008 15:16:46 +0000 (17:16 +0200)]
[S390] vmur: Fix return code handling.

Use -EOPNOTSUPP instead of -ENOTSUPP.

Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] Fix stacktrace compile bug.
Heiko Carstens [Thu, 17 Jul 2008 15:16:45 +0000 (17:16 +0200)]
[S390] Fix stacktrace compile bug.

Add missing module.h include to fix this:

  CC      arch/s390/kernel/stacktrace.o
arch/s390/kernel/stacktrace.c:84: warning: data definition has no type or storage class
arch/s390/kernel/stacktrace.c:84: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL'
arch/s390/kernel/stacktrace.c:84: warning: parameter names (without types) in function declaration
arch/s390/kernel/stacktrace.c:97: warning: data definition has no type or storage class
arch/s390/kernel/stacktrace.c:97: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL'
arch/s390/kernel/stacktrace.c:97: warning: parameter names (without types) in function declaration

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] Increase default warning stacksize.
Heiko Carstens [Thu, 17 Jul 2008 15:16:44 +0000 (17:16 +0200)]
[S390] Increase default warning stacksize.

Compiling a kernel with allmodconfig or allyesconfig results in tons
of gcc warnings, because the default maximum stacksize from which on
gcc will emit a warning is just 256 bytes.
Increase this to 2048, so these warnings don't distract from the real
warnings that we need to watch at.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] dasd: Fix cleanup in dasd_{fba,diag}_check_characteristics().
Cornelia Huck [Thu, 17 Jul 2008 15:16:43 +0000 (17:16 +0200)]
[S390] dasd: Fix cleanup in dasd_{fba,diag}_check_characteristics().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] chsc headers userspace cleanup
Adrian Bunk [Thu, 17 Jul 2008 15:16:42 +0000 (17:16 +0200)]
[S390] chsc headers userspace cleanup

Kernel headers shouldn't expose functions to userspace.

Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] dasd: fix unsolicited SIM handling.
Stefan Haberland [Thu, 17 Jul 2008 15:16:41 +0000 (17:16 +0200)]
[S390] dasd: fix unsolicited SIM handling.

Add missing schedule_bh and check that there is 32 bit sense data.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years ago[S390] zfcpdump: Make SCSI disk dump tool recognize storage holes
Frank Munzert [Thu, 17 Jul 2008 15:16:40 +0000 (17:16 +0200)]
[S390] zfcpdump: Make SCSI disk dump tool recognize storage holes

The kernel part of zfcpdump establishes a new debugfs file zcore/memmap
which exports information on memory layout (start address and length of each
memory chunk) to its userspace counterpart.

Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
16 years agoftrace: fix merge buglet
Ingo Molnar [Thu, 17 Jul 2008 11:26:50 +0000 (13:26 +0200)]
ftrace: fix merge buglet

-tip testing found a bootup hang here:

  initcall anon_inode_init+0x0/0x130 returned 0 after 0 msecs
  calling  acpi_event_init+0x0/0x57

the bootup should have continued with:

  initcall acpi_event_init+0x0/0x57 returned 0 after 45 msecs

but it hung hard there instead.

bisection led to this commit:

| commit 5806b81ac1c0c52665b91723fd4146a4f86e386b
| Merge: d14c8a6... 6712e29...
| Author: Ingo Molnar <mingo@elte.hu>
| Date:   Mon Jul 14 16:11:52 2008 +0200
|     Merge branch 'auto-ftrace-next' into tracing/for-linus

turns out that i made this mistake in the merge:

  ifdef CONFIG_FTRACE
  # Do not profile debug utilities
  CFLAGS_REMOVE_tsc_64.o = -pg
  CFLAGS_REMOVE_tsc_32.o = -pg

those two files got unified meanwhile - so the dont-profile annotation
got lost. The proper rule is:

  CFLAGS_REMOVE_tsc.o = -pg

i guess this could have been caught sooner if the CFLAGS_REMOVE* kbuild
rule aborted the build if it met a target that does not exist anymore?

Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 years agofix dangling zombie when new parent ignores children
Roland McGrath [Wed, 9 Apr 2008 06:12:30 +0000 (23:12 -0700)]
fix dangling zombie when new parent ignores children

This fixes an arcane bug that we think was a regression introduced
by commit b2b2cbc4b2a2f389442549399a993a8306420baf.  When a parent
ignores SIGCHLD (or uses SA_NOCLDWAIT), its children would self-reap
but they don't if it's using ptrace on them.  When the parent thread
later exits and ceases to ptrace a child but leaves other live
threads in the parent's thread group, any zombie children are left
dangling.  The fix makes them self-reap then, as they would have
done earlier if ptrace had not been in use.

Signed-off-by: Roland McGrath <roland@redhat.com>
16 years agodo_wait: return security_task_wait() error code in place of -ECHILD
Roland McGrath [Mon, 31 Mar 2008 01:41:25 +0000 (18:41 -0700)]
do_wait: return security_task_wait() error code in place of -ECHILD

This reverts the effect of commit f2cc3eb133baa2e9dc8efd40f417106b2ee520f3
"do_wait: fix security checks".  That change reverted the effect of commit
73243284463a761e04d69d22c7516b2be7de096c.  The rationale for the original
commit still stands.  The inconsistent treatment of children hidden by
ptrace was an unintended omission in the original change and in no way
invalidates its purpose.

This makes do_wait return the error returned by security_task_wait()
(usually -EACCES) in place of -ECHILD when there are some children the
caller would be able to wait for if not for the permission failure.  A
permission error will give the user a clue to look for security policy
problems, rather than for mysterious wait bugs.

Signed-off-by: Roland McGrath <roland@redhat.com>
16 years agoptrace children revamp
Roland McGrath [Tue, 25 Mar 2008 01:36:23 +0000 (18:36 -0700)]
ptrace children revamp

ptrace no longer fiddles with the children/sibling links, and the
old ptrace_children list is gone.  Now ptrace, whether of one's own
children or another's via PTRACE_ATTACH, just uses the new ptraced
list instead.

There should be no user-visible difference that matters.  The only
change is the order in which do_wait() sees multiple stopped
children and stopped ptrace attachees.  Since wait_task_stopped()
was changed earlier so it no longer reorders the children list, we
already know this won't cause any new problems.

Signed-off-by: Roland McGrath <roland@redhat.com>
16 years agodo_wait reorganization
Roland McGrath [Thu, 20 Mar 2008 02:24:59 +0000 (19:24 -0700)]
do_wait reorganization

This breaks out the guts of do_wait into three subfunctions.
The control flow is less nonobvious without so much goto.
do_wait_thread and ptrace_do_wait contain the main work of the outer loop.
wait_consider_task contains the main work of the inner loop.

Signed-off-by: Roland McGrath <roland@redhat.com>
16 years agoscsi_dh: Verify "dev" is a sdev before accessing it.
Chandra Seetharaman [Thu, 17 Jul 2008 00:35:08 +0000 (17:35 -0700)]
scsi_dh: Verify "dev" is a sdev before accessing it.

Before accessing the device data structure in hardware handlers,
make sure it is a indeed a sdev device.

Yinghai Lu <yhlu.kernel@gmail.com> found the bug on Jul 16, 2008,
and later tested/verified the following fix.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
Linus Torvalds [Thu, 17 Jul 2008 00:25:46 +0000 (17:25 -0700)]
Merge branch 'linux-next' of git://git./linux/kernel/git/jbarnes/pci-2.6

* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (72 commits)
  Revert "x86/PCI: ACPI based PCI gap calculation"
  PCI: remove unnecessary volatile in PCIe hotplug struct controller
  x86/PCI: ACPI based PCI gap calculation
  PCI: include linux/pm_wakeup.h for device_set_wakeup_capable
  PCI PM: Fix pci_prepare_to_sleep
  x86/PCI: Fix PCI config space for domains > 0
  Fix acpi_pm_device_sleep_wake() by providing a stub for CONFIG_PM_SLEEP=n
  PCI: Simplify PCI device PM code
  PCI PM: Introduce pci_prepare_to_sleep and pci_back_from_sleep
  PCI ACPI: Rework PCI handling of wake-up
  ACPI: Introduce new device wakeup flag 'prepared'
  ACPI: Introduce acpi_device_sleep_wake function
  PCI: rework pci_set_power_state function to call platform first
  PCI: Introduce platform_pci_power_manageable function
  ACPI: Introduce acpi_bus_power_manageable function
  PCI: make pci_name use dev_name
  PCI: handle pci_name() being const
  PCI: add stub for pci_set_consistent_dma_mask()
  PCI: remove unused arch pcibios_update_resource() functions
  PCI: fix pci_setup_device()'s sprinting into a const buffer
  ...

Fixed up conflicts in various files (arch/x86/kernel/setup_64.c,
arch/x86/pci/irq.c, arch/x86/pci/pci.h, drivers/acpi/sleep/main.c,
drivers/pci/pci.c, drivers/pci/pci.h, include/acpi/acpi_bus.h) from x86
and ACPI updates manually.

16 years agoRevert "x86/PCI: ACPI based PCI gap calculation"
Jesse Barnes [Wed, 16 Jul 2008 23:21:47 +0000 (16:21 -0700)]
Revert "x86/PCI: ACPI based PCI gap calculation"

This reverts commit 809d9a8f93bd8504dcc34b16bbfdfd1a8c9bb1ed.

This one isn't quite ready for prime time.  It needs more testing and
additional feedback from the ACPI guys.

16 years ago[PATCH] ocfs2: fix oops in mmap_truncate testing
Coly Li [Mon, 30 Jun 2008 10:45:45 +0000 (18:45 +0800)]
[PATCH] ocfs2: fix oops in mmap_truncate testing

This patch fixes a mmap_truncate bug which was found by ocfs2 test suite.

In an ocfs2 cluster more than 1 node, run program mmap_truncate, which races
mmap writes and truncates from multiple processes. While the test is
running, a stat from another node forces writeout, causing an oops in
ocfs2_get_block() because it sees a buffer to write which isn't allocated.

This patch fixed the bug by clear dirty and uptodate bits in buffer, leave
the buffer unmapped and return.

Fix is suggested by Mark Fasheh, and I code up the patch.

Signed-off-by: Coly Li <coyli@suse.de>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
Linus Torvalds [Wed, 16 Jul 2008 22:11:07 +0000 (15:11 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (68 commits)
  sdio_uart: Fix SDIO break control to now return success or an error
  mmc: host driver for Ricoh Bay1Controllers
  sdio: sdio_io.c Fix sparse warnings
  sdio: fix the use of hard coded timeout value.
  mmc: OLPC: update vdd/powerup quirk comment
  mmc: fix spares errors of sdhci.c
  mmc: remove multiwrite capability
  wbsd: fix bad dma_addr_t conversion
  atmel-mci: Driver for Atmel on-chip MMC controllers
  mmc: fix sdio_io sparse errors
  mmc: wbsd.c fix shadowing of 'dma' variable
  MMC: S3C24XX: Refuse incorrectly aligned transfers
  MMC: S3C24XX: Add maintainer entry
  MMC: S3C24XX: Update error debugging.
  MMC: S3C24XX: Add media presence test to request handling.
  MMC: S3C24XX: Fix use of msecs where jiffies are needed
  MMC: S3C24XX: Add MODULE_ALIAS() entries for the platform devices
  MMC: S3C24XX: Fix s3c2410_dma_request() return code check.
  MMC: S3C24XX: Allow card-detect on non-IRQ capable pin
  MMC: S3C24XX: Ensure host->mrq->data is valid
  ...

Manually fixed up bogus executable bits on drivers/mmc/core/sdio_io.c
and include/linux/mmc/sdio_func.h when merging.

16 years agoMerge branch 'for_linus' of git://git.infradead.org/~dedekind/ubifs-2.6
Linus Torvalds [Wed, 16 Jul 2008 22:02:57 +0000 (15:02 -0700)]
Merge branch 'for_linus' of git://git.infradead.org/~dedekind/ubifs-2.6

* 'for_linus' of git://git.infradead.org/~dedekind/ubifs-2.6:
  UBIFS: include to compilation
  UBIFS: add new flash file system
  UBIFS: add brief documentation
  MAINTAINERS: add UBIFS section
  do_mounts: allow UBI root device name
  VFS: export sync_sb_inodes
  VFS: move inode_lock into sync_sb_inodes

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Wed, 16 Jul 2008 21:53:54 +0000 (14:53 -0700)]
Merge git://git./linux/kernel/git/bart/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (76 commits)
  IDE: Report errors during drive reset back to user space
  Update documentation of HDIO_DRIVE_RESET ioctl
  IDE: Remove unused code
  IDE: Fix HDIO_DRIVE_RESET handling
  hd.c: remove the #include <linux/mc146818rtc.h>
  update the BLK_DEV_HD help text
  move ide/legacy/hd.c to drivers/block/
  ide/legacy/hd.c: use late_initcall()
  remove BLK_DEV_HD_ONLY
  ide: endian annotations in ide-floppy.c
  ide-floppy: zero out the whole struct ide_atapi_pc on init
  ide-floppy: fold idefloppy_create_test_unit_ready_cmd into idefloppy_open
  ide-cd: move request prep chunk from cdrom_do_newpc_cont to rq issue path
  ide-cd: move request prep from cdrom_start_rw_cont to rq issue path
  ide-cd: move request prep from cdrom_start_seek_continuation to rq issue path
  ide-cd: fold cdrom_start_seek into ide_cd_do_request
  ide-cd: simplify request issuing path
  ide-cd: mv ide_do_rw_cdrom ide_cd_do_request
  ide-cd: cdrom_start_seek: remove unused argument block
  ide-cd: ide_do_rw_cdrom: add the catch-all bad request case to the if-else block
  ...

16 years agoMerge branch 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak...
Linus Torvalds [Wed, 16 Jul 2008 21:52:12 +0000 (14:52 -0700)]
Merge branch 'release-2.6.27' of git://git./linux/kernel/git/ak/linux-acpi-merge-2.6

* 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-merge-2.6: (87 commits)
  Fix FADT parsing
  Add the ability to reset the machine using the RESET_REG in ACPI's FADT table.
  ACPI: use dev_printk when possible
  PNPACPI: add support for HP vendor-specific CCSR descriptors
  PNP: avoid legacy IDE IRQs
  PNP: convert resource options to single linked list
  ISAPNP: handle independent options following dependent ones
  PNP: remove extra 0x100 bit from option priority
  PNP: support optional IRQ resources
  PNP: rename pnp_register_*_resource() local variables
  PNPACPI: ignore _PRS interrupt numbers larger than PNP_IRQ_NR
  PNP: centralize resource option allocations
  PNP: remove redundant pnp_can_configure() check
  PNP: make resource assignment functions return 0 (success) or -EBUSY (failure)
  PNP: in debug resource dump, make empty list obvious
  PNP: improve resource assignment debug
  PNP: increase I/O port & memory option address sizes
  PNP: introduce pnp_irq_mask_t typedef
  PNP: make resource option structures private to PNP subsystem
  PNP: define PNP-specific IORESOURCE_IO_* flags alongside IRQ, DMA, MEM
  ...

16 years agoblock: Trivial fix for blk_integrity_rq()
Martin K. Petersen [Wed, 16 Jul 2008 20:09:06 +0000 (16:09 -0400)]
block: Trivial fix for blk_integrity_rq()

Fail integrity check gracefully when request does not have a bio
attached (BLOCK_PC).

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Wed, 16 Jul 2008 21:49:49 +0000 (14:49 -0700)]
Merge git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (82 commits)
  NFSv4: Remove BKL from the nfsv4 state recovery
  SUNRPC: Remove the BKL from the callback functions
  NFS: Remove BKL from the readdir code
  NFS: Remove BKL from the symlink code
  NFS: Remove BKL from the sillydelete operations
  NFS: Remove the BKL from the rename, rmdir and unlink operations
  NFS: Remove BKL from NFS lookup code
  NFS: Remove the BKL from nfs_link()
  NFS: Remove the BKL from the inode creation operations
  NFS: Remove BKL usage from open()
  NFS: Remove BKL usage from the write path
  NFS: Remove the BKL from the permission checking code
  NFS: Remove attribute update related BKL references
  NFS: Remove BKL requirement from attribute updates
  NFS: Protect inode->i_nlink updates using inode->i_lock
  nfs: set correct fl_len in nlmclnt_test()
  SUNRPC: Support registering IPv6 interfaces with local rpcbind daemon
  SUNRPC: Refactor rpcb_register to make rpcbindv4 support easier
  SUNRPC: None of rpcb_create's callers wants a privileged source port
  SUNRPC: Introduce a specific rpcb_create for contacting localhost
  ...

16 years agoFix FADT parsing
Jan Beulich [Wed, 16 Jul 2008 21:27:08 +0000 (23:27 +0200)]
Fix FADT parsing

The (1.0 inherited) separate length fields in the FADT are byte granular.
Further, PM1a/b may have distinct lengths and live in distinct address spaces.
 acpi_tb_convert_fadt() should account for all of these conditions.

Apart from these changes I'm puzzled by the fact that, not just for
acpi_gbl_xpm1{a,b}_enable, acpi_hw_low_level_{read,write}() get an explicit
size passed rather than using the size found in the passed GAS.  What happens
on a platform that defines PM1{a,b} wider than 16 bits?  Of course,
acpi_hw_low_level_{read,write}() at present are entirely un-prepared to deal
with sizes other than 8, 16, or 32, not to speak of a non-zero bit_offset or
access_width...

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
16 years agoAdd the ability to reset the machine using the RESET_REG in ACPI's FADT table.
Aaron Durbin [Wed, 16 Jul 2008 21:27:08 +0000 (23:27 +0200)]
Add the ability to reset the machine using the RESET_REG in ACPI's FADT table.

Signed-off-by: Aaron Durbin <adurbin@google.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
16 years agoACPI: use dev_printk when possible
Bjorn Helgaas [Fri, 27 Jun 2008 14:45:39 +0000 (08:45 -0600)]
ACPI: use dev_printk when possible

Convert printks to use dev_printk().  The most obvious change will
be messages like this:

   -ACPI: PCI Interrupt 0000:00:04.0[A] -> GSI 31 (level, low) -> IRQ 31
   +cciss 0000:00:04.0: PCI INT A -> GSI 31 (level, low) -> IRQ 31

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
16 years agoPNPACPI: add support for HP vendor-specific CCSR descriptors
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:19 +0000 (16:57 -0600)]
PNPACPI: add support for HP vendor-specific CCSR descriptors

The HP CCSR descriptor describes MMIO address space that should appear
as a MEM resource.  This patch adds support for parsing these descriptors
in the _CRS data.

The visible effect of this is that these MEM resources will appear
in /sys/devices/pnp0/.../resources, which means that "lspnp -v" will
report it, user applications can use this to locate device CSR space,
and kernel drivers can use the normal PNP resource accessors to
locate them.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
16 years agoPNP: avoid legacy IDE IRQs
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:18 +0000 (16:57 -0600)]
PNP: avoid legacy IDE IRQs

If an IDE controller is in compatibility mode, it expects to use
IRQs 14 and 15, so PNP should avoid them.

This patch should resolve this problem report:
  parallel driver grabs IRQ14 preventing legacy SFF ATA controller from working
  https://bugzilla.novell.com/show_bug.cgi?id=375836

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
16 years agoPNP: convert resource options to single linked list
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:17 +0000 (16:57 -0600)]
PNP: convert resource options to single linked list

ISAPNP, PNPBIOS, and ACPI describe the "possible resource settings" of
a device, i.e., the possibilities an OS bus driver has when it assigns
I/O port, MMIO, and other resources to the device.

PNP used to maintain this "possible resource setting" information in
one independent option structure and a list of dependent option
structures for each device.  Each of these option structures had lists
of I/O, memory, IRQ, and DMA resources, for example:

  dev
    independent options
      ind-io0  -> ind-io1  ...
      ind-mem0 -> ind-mem1 ...
      ...
    dependent option set 0
      dep0-io0  -> dep0-io1  ...
      dep0-mem0 -> dep0-mem1 ...
      ...
    dependent option set 1
      dep1-io0  -> dep1-io1  ...
      dep1-mem0 -> dep1-mem1 ...
      ...
    ...

This data structure was designed for ISAPNP, where the OS configures
device resource settings by writing directly to configuration
registers.  The OS can write the registers in arbitrary order much
like it writes PCI BARs.

However, for PNPBIOS and ACPI devices, the OS uses firmware interfaces
that perform device configuration, and it is important to pass the
desired settings to those interfaces in the correct order.  The OS
learns the correct order by using firmware interfaces that return the
"current resource settings" and "possible resource settings," but the
option structures above doesn't store the ordering information.

This patch replaces the independent and dependent lists with a single
list of options.  For example, a device might have possible resource
settings like this:

  dev
    options
      ind-io0 -> dep0-io0 -> dep1->io0 -> ind-io1 ...

All the possible settings are in the same list, in the order they
come from the firmware "possible resource settings" list.  Each entry
is tagged with an independent/dependent flag.  Dependent entries also
have a "set number" and an optional priority value.  All dependent
entries must be assigned from the same set.  For example, the OS can
use all the entries from dependent set 0, or all the entries from
dependent set 1, but it cannot mix entries from set 0 with entries
from set 1.

Prior to this patch PNP didn't keep track of the order of this list,
and it assigned all independent options first, then all dependent
ones.  Using the example above, that resulted in a "desired
configuration" list like this:

  ind->io0 -> ind->io1 -> depN-io0 ...

instead of the list the firmware expects, which looks like this:

  ind->io0 -> depN-io0 -> ind-io1 ...

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoISAPNP: handle independent options following dependent ones
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:16 +0000 (16:57 -0600)]
ISAPNP: handle independent options following dependent ones

The ISAPNP spec recommends that independent options precede
dependent ones, but this is not actually required.  The current
ISAPNP code incorrectly puts such trailing independent options
at the end of the last dependent option list.

This patch fixes that bug by resetting the current option list
to the independent list when we see an "End Dependent Functions"
tag.  PNPBIOS and PNPACPI handle this the same way.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: remove extra 0x100 bit from option priority
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:15 +0000 (16:57 -0600)]
PNP: remove extra 0x100 bit from option priority

When building resource options, ISAPNP and PNPBIOS set the priority
to something like "0x100 | PNP_RES_PRIORITY_ACCEPTABLE", but we
immediately mask off the 0x100 again in pnp_build_option(), so that
bit looks superfluous.

Thanks to Rene Herman <rene.herman@gmail.com> for pointing this out.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: support optional IRQ resources
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:14 +0000 (16:57 -0600)]
PNP: support optional IRQ resources

This patch adds an IORESOURCE_IRQ_OPTIONAL flag for use when
assigning resources to a device.  If the flag is set and we are
unable to assign an IRQ to the device, we can leave the IRQ
disabled but allow the overall resource allocation to succeed.

Some devices request an IRQ, but can run without an IRQ
(possibly with degraded performance).  This flag lets us run
the device without the IRQ instead of just leaving the
device disabled.

This is a reimplementation of this previous change by Rene
Herman <rene.herman@gmail.com>:
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3b73a223661ed137c5d3d2635f954382e94f5a43

I reimplemented this for two reasons:
    - to prepare for converting all resource options into a single linked
      list, as opposed to the per-resource-type lists we have now, and
    - to preserve the order and number of resource options.

In PNPBIOS and ACPI, we configure a device by giving firmware a
list of resource assignments.  It is important that this list
has exactly the same number of resources, in the same order,
as the "template" list we got from the firmware in the first
place.

The problem of a sound card MPU401 being left disabled for want of
an IRQ was reported by Uwe Bugla <uwe.bugla@gmx.de>.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: rename pnp_register_*_resource() local variables
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:13 +0000 (16:57 -0600)]
PNP: rename pnp_register_*_resource() local variables

No functional change; just rename "data" to something more
descriptive.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNPACPI: ignore _PRS interrupt numbers larger than PNP_IRQ_NR
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:12 +0000 (16:57 -0600)]
PNPACPI: ignore _PRS interrupt numbers larger than PNP_IRQ_NR

ACPI Extended Interrupt Descriptors can encode 32-bit interrupt
numbers, so an interrupt number may exceed the size of the bitmap
we use to track possible IRQ settings.

To avoid corrupting memory, complain and ignore too-large interrupt
numbers.

There's similar code in pnpacpi_parse_irq_option(), but I didn't
change that because the small IRQ descriptor can only encode
IRQs 0-15, which do not exceed bitmap size.

In the future, we could handle IRQ numbers greater than PNP_IRQ_NR
by replacing the bitmap with a table or list.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: centralize resource option allocations
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:11 +0000 (16:57 -0600)]
PNP: centralize resource option allocations

This patch moves all the option allocations (pnp_mem, pnp_port, etc)
into the pnp_register_{mem,port,irq,dma}_resource() functions.  This
will make it easier to rework the option data structures.

The non-trivial part of this patch is the IRQ handling.  The backends
have to allocate a local pnp_irq_mask_t bitmap, populate it, and pass
a pointer to pnp_register_irq_resource().

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: remove redundant pnp_can_configure() check
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:10 +0000 (16:57 -0600)]
PNP: remove redundant pnp_can_configure() check

pnp_assign_resources() is static and the only caller checks
pnp_can_configure() before calling it, so no need to do it
again.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: make resource assignment functions return 0 (success) or -EBUSY (failure)
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:09 +0000 (16:57 -0600)]
PNP: make resource assignment functions return 0 (success) or -EBUSY (failure)

This patch doesn't change any behavior; it just makes the return
values more conventional.

This changes pnp_assign_dma() from a void function to one that
returns an int, just like the other assignment functions.  For
now, at least, pnp_assign_dma() always returns 0 (success), so
it appears to never fail, just like before.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: in debug resource dump, make empty list obvious
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:08 +0000 (16:57 -0600)]
PNP: in debug resource dump, make empty list obvious

If the resource list is empty, say that explicitly.  Previously,
it was confusing because often the heading was followed by zero
resource lines, then some "add resource" lines from auto-assignment,
so the "add" lines looked like current resources.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: improve resource assignment debug
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:07 +0000 (16:57 -0600)]
PNP: improve resource assignment debug

When we fail to assign an I/O or MEM resource, include the min/max
in the debug output to help match it with the options.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: increase I/O port & memory option address sizes
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:06 +0000 (16:57 -0600)]
PNP: increase I/O port & memory option address sizes

ACPI Address Space Descriptors can be up to 64 bits wide.
We should keep track of the whole thing when parsing resource
options, so this patch changes PNP port and mem option
fields from "unsigned short" and "unsigned int" to
"resource_size_t".

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: introduce pnp_irq_mask_t typedef
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:05 +0000 (16:57 -0600)]
PNP: introduce pnp_irq_mask_t typedef

This adds a typedef for the IRQ bitmap, which should cause
no functional change, but will make it easier to pass a
pointer to a bitmap to pnp_register_irq_resource().

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: make resource option structures private to PNP subsystem
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:04 +0000 (16:57 -0600)]
PNP: make resource option structures private to PNP subsystem

Nothing outside the PNP subsystem should need access to a
device's resource options, so this patch moves the option
structure declarations to a private header file.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: define PNP-specific IORESOURCE_IO_* flags alongside IRQ, DMA, MEM
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:03 +0000 (16:57 -0600)]
PNP: define PNP-specific IORESOURCE_IO_* flags alongside IRQ, DMA, MEM

PNP previously defined PNP_PORT_FLAG_16BITADDR and PNP_PORT_FLAG_FIXED
in a private header file, but put those flags in struct resource.flags
fields.  Better to make them IORESOURCE_IO_* flags like the existing
IRQ, DMA, and MEM flags.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: whitespace/coding style fixes
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:02 +0000 (16:57 -0600)]
PNP: whitespace/coding style fixes

No functional change; just make a couple declarations
consistent with the rest of the file.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: add pnp_possible_config() -- can a device could be configured this way?
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:01 +0000 (16:57 -0600)]
PNP: add pnp_possible_config() -- can a device could be configured this way?

As part of a heuristic to identify modem devices, 8250_pnp.c
checks to see whether a device can be configured at any of the
legacy COM port addresses.

This patch moves the code that traverses the PNP "possible resource
options" from 8250_pnp.c to the PNP subsystem.  This encapsulation
is important because a future patch will change the implementation
of those resource options.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
16 years agoPNP: dont sort by type in /sys/.../resources
Bjorn Helgaas [Fri, 27 Jun 2008 22:57:00 +0000 (16:57 -0600)]
PNP: dont sort by type in /sys/.../resources

Rather than stepping through all IO resources, then stepping through
all MMIO resources, etc., we can just iterate over the resource list
once directly.

This can change the order in /sys, e.g.,

    # cat /sys/devices/pnp0/00:07/resources     # OLD
    state = active
    io 0x3f8-0x3ff
    irq 4

    # cat /sys/devices/pnp0/00:07/resources     # NEW
    state = active
    irq 4
    io 0x3f8-0x3ff

The old code artificially sorted resources by type; the new code
just lists them in the order we read them from the ISAPNP hardware
or the BIOS.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
16 years agoPNP: remove ratelimit on add resource failures
Bjorn Helgaas [Fri, 27 Jun 2008 22:56:59 +0000 (16:56 -0600)]
PNP: remove ratelimit on add resource failures

We used to have a fixed-size resource table.  If a device had
twenty resources when the table only had space for ten, we didn't
need ten warnings, so we added the ratelimit.

Now that we can dynamically allocate new resources, we should
only get failures if the allocation fails.  That should be
rare enough that we don't need to ratelimit the messages.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
16 years agoPNPACPI: keep disabled resources when parsing current config
Bjorn Helgaas [Fri, 27 Jun 2008 22:56:58 +0000 (16:56 -0600)]
PNPACPI: keep disabled resources when parsing current config

When we parse a device's _CRS data (the current resource settings),
we should keep track of everything we find, even if it's currently
disabled or invalid.

This is what we already do for ISAPNP and PNPBIOS, and it helps
keep things matched up when we subsequently re-encode resources.
For example, consider a device with (mem, irq0, irq1, io), where
irq0 is disabled.  If we drop irq0 when parsing the _CRS, we will
mistakenly put irq1 in the irq0 slot when we encode resources
for an _SRS call.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
16 years agoPNP: replace pnp_resource_table with dynamically allocated resources
Bjorn Helgaas [Fri, 27 Jun 2008 22:56:57 +0000 (16:56 -0600)]
PNP: replace pnp_resource_table with dynamically allocated resources

PNP used to have a fixed-size pnp_resource_table for tracking the
resources used by a device.  This table often overflowed, so we've
had to increase the table size, which wastes memory because most
devices have very few resources.

This patch replaces the table with a linked list of resources where
the entries are allocated on demand.

This removes messages like these:

    pnpacpi: exceeded the max number of IO resources
    00:01: too many I/O port resources

References:

    http://bugzilla.kernel.org/show_bug.cgi?id=9535
    http://bugzilla.kernel.org/show_bug.cgi?id=9740
    http://lkml.org/lkml/2007/11/30/110

This patch also changes the way PNP uses the IORESOURCE_UNSET,
IORESOURCE_AUTO, and IORESOURCE_DISABLED flags.

Prior to this patch, the pnp_resource_table entries used the flags
like this:

    IORESOURCE_UNSET
This table entry is unused and available for use.  When this flag
is set, we shouldn't look at anything else in the resource structure.
This flag is set when a resource table entry is initialized.

    IORESOURCE_AUTO
This resource was assigned automatically by pnp_assign_{io,mem,etc}().

This flag is set when a resource table entry is initialized and
cleared whenever we discover a resource setting by reading an ISAPNP
config register, parsing a PNPBIOS resource data stream, parsing an
ACPI _CRS list, or interpreting a sysfs "set" command.

Resources marked IORESOURCE_AUTO are reinitialized and marked as
IORESOURCE_UNSET by pnp_clean_resource_table() in these cases:

    - before we attempt to assign resources automatically,
    - if we fail to assign resources automatically,
    - after disabling a device

    IORESOURCE_DISABLED
Set by pnp_assign_{io,mem,etc}() when automatic assignment fails.
Also set by PNPBIOS and PNPACPI for:

    - invalid IRQs or GSI registration failures
    - invalid DMA channels
    - I/O ports above 0x10000
    - mem ranges with negative length

After this patch, there is no pnp_resource_table, and the resource list
entries use the flags like this:

    IORESOURCE_UNSET
This flag is no longer used in PNP.  Instead of keeping
IORESOURCE_UNSET entries in the resource list, we remove
entries from the list and free them.

    IORESOURCE_AUTO
No change in meaning: it still means the resource was assigned
automatically by pnp_assign_{port,mem,etc}(), but these functions
now set the bit explicitly.

We still "clean" a device's resource list in the same places,
but rather than reinitializing IORESOURCE_AUTO entries, we
just remove them from the list.

Note that IORESOURCE_AUTO entries are always at the end of the
list, so removing them doesn't reorder other list entries.
This is because non-IORESOURCE_AUTO entries are added by the
ISAPNP, PNPBIOS, or PNPACPI "get resources" methods and by the
sysfs "set" command.  In each of these cases, we completely free
the resource list first.

    IORESOURCE_DISABLED
In addition to the cases where we used to set this flag, ISAPNP now
adds an IORESOURCE_DISABLED resource when it reads a configuration
register with a "disabled" value.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
16 years agoPNP: make pnp_{port,mem,etc}_start(), et al work for invalid resources
Bjorn Helgaas [Fri, 27 Jun 2008 22:56:56 +0000 (16:56 -0600)]
PNP: make pnp_{port,mem,etc}_start(), et al work for invalid resources

Some callers use pnp_port_start() and similar functions without
making sure the resource is valid.  This patch makes us fall
back to returning the initial values if the resource is not
valid or not even present.

This mostly preserves the previous behavior, where we would just
return the initial values set by pnp_init_resource_table().  The
original 2.6.25 code didn't range-check the "bar", so it would
return garbage if the bar exceeded the table size.  This code
returns sensible values instead.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
16 years agoPNP: add pnp_resource_type_name() helper function
Bjorn Helgaas [Fri, 27 Jun 2008 22:56:55 +0000 (16:56 -0600)]
PNP: add pnp_resource_type_name() helper function

This patch adds a "pnp_resource_type_name(struct resource *)" that
returns the string resource type.  This will be used by the sysfs
"show resources" function and the debug resource dump function.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
16 years agoPNP: add pnp_resource_type() internal interface
Bjorn Helgaas [Fri, 27 Jun 2008 22:56:54 +0000 (16:56 -0600)]
PNP: add pnp_resource_type() internal interface

Given a struct resource, this returns the type (IO, MEM, IRQ, DMA).

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>